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@@ -9,7 +9,7 @@ The main goal of the program is to generate the result of the beta_reduction of
 ## Table of contents
 
 
-<!-- TOC -->- [the structures](#structures)<br />    - [what to install](#lib)<br />    - [how to install](#needs)<br />    - [utilisation](#utilisation)<br />    - [parsing ](#parse)<br />    - [documentation](#docu)<br />    - [contribution](#contri)<br /> <!-- /TOC -->
+<!-- TOC -->- [the structures](#structures)<br />    - [what to install](#needs)<br />    - [how to install](#how)<br />    - [utilisation](#utilisation)<br />    - [parsing ](#parse)<br />    - [documentation](#docu)<br />    - [contribution](#contri)<br /> <!-- /TOC -->
 
 ## structures <a name="structures"></a>